2013
DOI: 10.15407/ubj85.03.090
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Cholecalciferol hydroxylation in rat hepatocytes under the influence of prednisolone

Abstract: CYP2R1, CYP27A1, гепатоцит, глюкокортикоїди, преднізолон.

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Cited by 9 publications
(7 citation statements)
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“…These results indicate the negative effect of prednisone on the metabolism of cholecalciferol, which may be linked to significant changes in protein content and activity of vitamin D 3 25-hydroxylase isoenzymes in liver cells that we have previously established [9]. Vitamin D 3 treatment led to complete restoration of 25OHD 3 level.…”
Section: Resultsmentioning
confidence: 64%
“…These results indicate the negative effect of prednisone on the metabolism of cholecalciferol, which may be linked to significant changes in protein content and activity of vitamin D 3 25-hydroxylase isoenzymes in liver cells that we have previously established [9]. Vitamin D 3 treatment led to complete restoration of 25OHD 3 level.…”
Section: Resultsmentioning
confidence: 64%
“…In this regard, dexamethasone increases renal expression of vitamin D-24-hydroxylase and the expression of 24-hydroxylase mRNA [23, 24], which degrades vitamin D metabolites such as 25(OH)D and 1,25(OH) 2 D. A functional cooperation between the GC receptor, C/EBP β , and the vitamin D receptor (VDR), which increases 24-hydroxylase transcription, has also been described [25]. In addition, the administration of prednisolone in rats inhibits the activity of vitamin D3 25-hydroxylase [26]. These effects may help to explain the low 25(OH)D concentration found in patients of our study that received cholecalciferol.…”
Section: Discussionmentioning
confidence: 99%
“…Вітамін D 3 виходить із клітинної мембрани кератоцитів і переноситься в капілярну сітку шкіри за допомогою вітамін-D-зв'язуючого білка (DBP). Вітамін D, що надходить перорально, включається до складу хіломікронів із вмістом холекальциферолу, що утворюється при взаємодії вітаміну D 3 з урохолевою кислотою, вони надалі надходять у лімфатичну систему, а потім у венозну кров [5,15], де він зв'язується з DBP і ліпопротеїнами, які надходять у печінку [3,12].…”
Section: біотрансформація та фармакокінетика холекальциферолуunclassified